Take plenty of breaks, because they offer a double bonus: the time off gives your mind a chance to do some preliminary consolidation and it also gives a memory boost to the learning.

多休息，因为休息有双重好处：休息能让你的大脑有机会进行一些初步的巩固，也能提高学习的记忆力。

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Take plenty of breaks, because they offer a double bonus. The time off gives your mind a chance to do some preliminary consolidation, and it also gives a memory boost to the learning.

多休息，因为这会收到事半功倍的效果。休息能让你的大脑有机会进行一些初步的巩固，也能提高学习的记忆力。

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Counselling and medication can more than double the chance that a smoker who tries to quit will succeed.

咨询和药物治疗可使试图戒烟者的成功机会增加不止一倍。

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It makes sense to switch: if you do, you double your chance of winning the car.

ECONOMIST: Getting the goat

Another study in 178 patients showed almost double the chance of living independently after treatment.

BBC: 'Clot nets' help stroke recovery

The IMF is also saying that there is a 15 percent chance of a double dip in the U.S. in 2013, a 25 percent chance of a recession in Japan and a guaranteed recession in southern Europe, with an 80 percent chance at least throughout the entire euro zone, the dominant economy on Earth.

FORBES: Global Growth Going Down, But Don't Blame The BRICs